36088781 has 2 divisors, whose sum is σ = 36088782. Its totient is φ = 36088780.

The previous prime is 36088777. The next prime is 36088823. The reversal of 36088781 is 18788063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28526281 + 7562500 = 5341^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 36088781 - 2² = 36088777 is a prime.

It is a super-2 number, since 2×36088781² = 2604800228131922, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36088721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18044390 + 18044391.

It is an arithmetic number, because the mean of its divisors is an integer number (18044391).

Almost surely, 2^36088781 is an apocalyptic number.

It is an amenable number.

36088781 is a deficient number, since it is larger than the sum of its proper divisors (1).

36088781 is an equidigital number, since it uses as much as digits as its factorization.

36088781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 36088781 is about 6007.3938609017. The cubic root of 36088781 is about 330.4639357702.

The spelling of 36088781 in words is "thirty-six million, eighty-eight thousand, seven hundred eighty-one".